这种成分的存在可以令宝宝产生归属感，并增强他的免疫力。

The presence of this component creates feelings of bonding and strengthens immunity in the baby.

youdao

这种成分的存在可以令宝宝产生归属感，并增强他的免疫力。

The presence of this component creates feelings of bonding and strengthens immunity in the baby.

youdao